The Perl and Raku Conference 2025: Greenville, South Carolina - June 27-29 Learn more

 / 
IO-Any-0.09
River stage two • 11 direct dependents • 24 total dependents
/ IO::Any

NAME

IO::Any - open anything

SYNOPSIS


            

              
              
# NOTE commented out lines doesn't work (yet)
use IO::Any;
$fh = IO::Any->read('filename');
$fh = IO::Any->read('file://var/log/syslog');
#$fh = IO::Any->read('http://search.cpan.org/');
#$fh = IO::Any->read('-');
$fh = IO::Any->read(['folder', 'other-folder', 'filename']);
$fh = IO::Any->read('folder');
$fh = IO::Any->read("some text\nwith more lines\n");
$fh = IO::Any->read(\"some text\nwith more lines\n");
$fh = IO::Any->read('{"123":[1,2,3]}');
$fh = IO::Any->read('<root><element>abc</element></root>');
$fh = IO::Any->read(*DATA);
$fh = IO::Any->read(IO::String->new("cba"));
#$fh = IO::Any->read($object_with_toString_method);
$fh = IO::Any->write('filename');
$fh = IO::Any->write('file://var/log/syslog');
#$fh = IO::Any->write('-');
$fh = IO::Any->write(['folder', 'filename']);
#$fh = IO::Any->write('=');
my $string;
$fh = IO::Any->write(\$string);
my $content = IO::Any->slurp(['folder', 'filename']);
IO::Any->spew(['folder2', 'filename'], $content);
perl -MIO::Any -le 'print IO::Any->slurp("/etc/passwd")'
perl -MIO::Any -le 'IO::Any->spew("/tmp/timetick", time())'

DESCRIPTION

The aim is to provide read/write anything. The module tries to guess $what the "anything" is based on some rules. See "new" method Pod for examples and "new" and "_guess_what" code for the implementation.

There are two methods "slurp" and "spew" to read/write whole $what.

MOTIVATION

The purpose is to be able to use IO::Any in other modules that needs to read or write data. The description for an argument could be - pass anything that IO::Any accepts as argument - GLOBs, IO::File, Path::Class::File, IO::AtomicFile, IO::String, pointers to scalar and pointer to array (array elements are passed to "catfile" in File::Spec as portable file addressing).

First time I've used IO::Any for JSON::Util where for the functions to encode and decode needs to read/write data.

METHODS

new($what, $how, $options)

Open $what in $how mode.

$what can be:


            

              
              
'filename'                => [ 'file' => 'filename' ],
'folder/filename'         => [ 'file' => 'folder/filename' ],
'file:///folder/filename' => [ 'file' => '/folder/filename' ],
[ 'folder', 'filename' ]  => [ 'file' => File::Spec->catfile('folder', 'filename') ],
'http://a/b/c'            => [ 'http' => 'http://a/b/c' ],
'https://a/b/c'           => [ 'http' => 'https://a/b/c' ],
'{"123":[1,2,3]}'         => [ 'string' => '{"123":[1,2,3]}' ],
'[1,2,3]'                 => [ 'string' => '[1,2,3]' ],
'<xml></xml>'             => [ 'string' => '<xml></xml>' ],
"a\nb\nc\n"               => [ 'string' => "a\nb\nc\n" ],
*DATA                     => [ 'file' => *{DATA}{IO} ],

Returns filehandle. IO::String for 'string', IO::File for 'file'. 'http' not implemented yet.

Here are available %$options options:


            

              
              
atomic    true/false if the file operations should be done using L<IO::AtomicFile> or L<IO::File>
LOCK_SH   lock file for shared access
LOCK_EX   lock file for exclusive
LOCK_NB   lock file non blocking (will throw an excpetion if file is
              already locked, instead of blocking the process)

_guess_what

Returns ($type, $what). $type can be:


            

              
              
file
string
http
iostring
iofile

$what is normalized path that can be used for IO::*.

read($what)

Same as IO::Any->new($what, '<'); or IO::Any->new($what);.

write($what)

Same as IO::Any->new($what, '>');

slurp($what)

Returns content of $what.

If AnyEvent is loaded then uses event loop to read the content.

spew($what, $data, $opt)

Writes $data to $what.

If AnyEvent is loaded then uses event loop to write the content.

SEE ALSO

IO::All, File::Spec, Path::Class

AUTHOR

Jozef Kutej, <jkutej at cpan.org>

CONTRIBUTORS

The following people have contributed to the Sys::Path by committing their code, sending patches, reporting bugs, asking questions, suggesting useful advice, nitpicking, chatting on IRC or commenting on my blog (in no particular order):


            

              
              
SREZIC [...] cpan.org
Alexandr Ciornii
Gabor Szabo
Przemek Wesołek
Slaven Rezić

BUGS

Please report any bugs or feature requests to bug-io-any at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=IO-Any. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.


            

              
              
perldoc IO::Any

You can also look for information at:

COPYRIGHT & LICENSE

Copyright 2009 Jozef Kutej, all rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.